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1/2 ton - 3/4 ton front swap .... Advice please

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by Stoopalini, Feb 26, 2001.

  1. Stoopalini

    Stoopalini 1/2 ton status

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    I'm getting close to finally swaping out my front factory 10 bolt for a 3/4 ton diff. I found a corp 10 bolt, 8 lug, 4.10 ratio diff and will be picking it up this week.

    I'm wondering what I will need to complete this swap? Will I need a trick U-Joint like I did in the rear? The Diff is complete hub to hub, so I shouldn't have to swap any components between the two.

    Any advice from someone who has done this before?

    Thanks,

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  2. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Just swap it right in and you are done.
    Keep the calipers on the brakelines on the truck and just bolt them back on to the new front.
    No trick or hybrid u-joints here to mess with. Just bolt your shaft back on and you are finished.
    All in all, its just a very simple swap, almost like swapping another 6 lug front for the other, only the new one being an 8 lug. Have fun with the install!
     
  3. Stoopalini

    Stoopalini 1/2 ton status

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    Sweeeeet!

    Thanks man, I guess this won't be ANYTHING compared to what I just got finished doing (14ff swap and shackle flip)

    I'm looking forward to using my 4WD again [​IMG]

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  4. Sparky

    Sparky 1/2 ton status

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    Just a thought, but the dana 44 is not much if any stronger than your front ten bolt. If you want to get something stronger go with a dana 60. If you just want to match the 8 lug 14 bolt in the rear go with the dana 44 espesially if it is a good deal.

    When all else fails... Check the blinker fluid.
    78 K-5
     
  5. Stoopalini

    Stoopalini 1/2 ton status

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    Well, from what this guy tells me, it's a corp 10 bolt from a 3/4 ton pickup. I assumed this was not the D44.
    I'm getting it because it is 8 lug, and also because it has 4.10 gears to match my 14B ff rear.
    Plus, I'm getting it local for $250 .... so I figured I better jump on this while I can.

    Right now, I have a 14B ff rear w/ 4.10 and a corp 1/2 ton 10 bolt front with ?? (3.07?) gears. This means no 4WD until I can match the ratios.
    So you can understand my wanting a 3/4 ton front diff that will work. At this point, corp 10 bolt, D44, or a D60 would work for me as long as It's in my price range (&lt;$300)

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  6. thatK30guy

    thatK30guy 1 ton status Premium Member

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    If you have been reading these posts by Stoopalini, you would know that he has been looking around for a 3/4 ton front for quite some time now. So, whos to blame him for coming across a 10B just so he can hurry up and go play? Generally speaking, a 10B's strength is no less than a D44. They are both equal. There really are not any major pros and cons with either one. I applaud Stoop for finally finding his axle and cant wait to see his installation on his web site. Gonna do a picture "how to", Stoop?
     
  7. Executioner

    Executioner 1/2 ton status

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    Dana(Spicer) 44 Equal in strenght to a Corp.10 in the front of GM's
    you of all people, good thing this is a opinion based , becuase the FACT"S would be different !
    lol I have to admitte they are close, but its like your pregent(baby) or not pregent.
    Sorry to disagree with you, but could you please post a p/n for a GM Corp 10 bolt front end spindle.
     
  8. Stoopalini

    Stoopalini 1/2 ton status

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    Yes, I will definitely do a full picture write up of the swap.
    I try to do photo documentation of everything I do to my truck, as maybe it will help someone else in the future.

    So far I have a 14B FF swap, Shackle Flip install, bushing replacement, and steering brace install pics. When I have the time, I will do complete writeups of all of these.
    <font color=orange>begin shameless plug</font color=orange>
    You'll be able to find them over at <A target="_blank" HREF=http://www.off-road.ws>Off-Road.ws</A> when I'm done.
    <font color=orange>end shameless plug</font color=orange>
    Thanks K30 guy, your knowledge has proven a VERY valuable source for me over these past few weeks ......... I truly do appreciate it!

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  9. Derf00

    Derf00 1/2 ton status

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    Stoop,

    You paid $250 for a corp 10b. I tried to sell you a Dana 44 w a complete Suburban attached to it w/coproprate 14b rear and 4.10 gears for $500-$600. It is still available.
     
  10. Stoopalini

    Stoopalini 1/2 ton status

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    Hey Derf00

    I do appreciate you finding that vehicle for me, but by the time I drove up there to get it and got back to Austin, a $500 vehicle would be costing me close to $800 or so. Just the gas alone to drive up there and tow it back would be $100+ ..... never mind accomidations to stay the night and a trailer or tow bar to tow it back with.

    I know it is a great deal, and I wish I had the time and resources to take advantage of it, but my current situation just doesn't allow for that.

    The 14B FF I have was shipped to me for only $300 <font color=red>(THANKS BOSS!!!!!)</font color=red> and this corp 10 bolt (equivelent to D44 I'm told) is costing $250. So both axles, with 4.10's, for $550 ....... man, that's pretty hard to beat. Plus, I don't have a chassis to get rid of with no axles [​IMG]

    That's why I love this place, everyone is always looking out for you and trying to help you out [​IMG] I don't know what I would do without you guys ....... My truck definitely would not be shaping up to be what it is if it weren't for this community!

    (sorry, but I just got out of a corporate meeting and maybe the motivational talk is rubbing off [​IMG])

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  11. Derf00

    Derf00 1/2 ton status

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    Relax Stoop,

    I was just giving you a bad time. I know this rat hole is along way from anywhere. Since I didn't have any personal involvement, it doesn't make me any difference, I would just like to see someone that needs the axels, get them. I just thought that you could have put your old axels under the old burb and re-sold it and got your money back.
    <P ID="edit"><FONT SIZE=-1>Edited by Derf00 on 02/26/01 04:52 PM (server time).</FONT></P>
     
  12. thatK30guy

    thatK30guy 1 ton status Premium Member

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    For anybody who wants the full scoop on the D44 and 10B comparisons, find the 4x4 POWER magazine, May 1999, on page 88 for the full scoop. Read what Stephen Watson has to say and others too. It boils down to in the end, that both axles are a TOSS UP. Meaning both are very dependable, strong, some parts interchangable.

    Executioner: What the f??? What are you trying to tell me here about my baby? Where does my personal life and family fit in on this post? Sure, you and I both have opinions, but leave the families out of this!!!
     
  13. Boss

    Boss 1/2 ton status Author

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    Stoop,

    Hey bud, no problem for the alxe. I'm glad everything is working out for yah! Sorry to hear you have some leaking problems though. I didn't know it leaked [​IMG]. Good luck on your front end swap.

    K30guy,
    Hey, don't mind Executioner. He is like that sometimes. But I don't think he's talking about your baby. I think what he is saying is, the difference between the two is "like you're either Pregnant or not" Could've said apples to oranges. Anyohow, that's the way I see it.
    Boss

    <A target="_blank" HREF=http://www.boss.coloradok5.com>http://www.boss.coloradok5.com</A>
     
  14. Stoopalini

    Stoopalini 1/2 ton status

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    Hey Boss,

    Yea, the 14 Bolt had a few problems, but I'm not complaining for $300!
    I finally got the leaks fixed with a <A target="_blank" HREF=http://www.off-road.ws/index.cfm?vwart=&artid=11>Speedi Sleeve Kit</A> install.
    The only other problem I came across was missing brake hardware (spacer, adjuster, and 2 springs) on the passengers side, but DP_90K5 was kind enough to sell me the missing components, so no big deal.

    If I wanted a rear diff I wasn't gonna have to touch, I would have had to spend $1200 or so for a rebuilt one! Instead, I paid $300 for the diff, and then another $100 or so for parts to make it right ............. so $400 is well worth it to me for a 14B FF that is in perfect condition [​IMG]

    Anyway, I think you are right about Executioner ........ he was just using "Pregnant" vs. "Not-Pregnant" as an analogy for "Dana 44" vs. "Corp 10 bolt"

    Thomas.

    -- '84 K5 Blazer --
    <A target="_blank" HREF=http://Stoopalini.coloradok5.com>http://Stoopalini.coloradok5.com</A>
     
  15. Executioner

    Executioner 1/2 ton status

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    Hum, so 4x4 POWER, and Ste Watso are the FACT"S on the Dana 44 and the Corp. 10 bolt front ends ?
    Shoot I give you more credit than 4x4 POWER, your a rebiuled they sit in the office and start romars(sp).
    Hey did not mean your Baby was trying to use it the way the others did.
    Could you plese post a p/n for a GM Corp.10 bolt front spindle ?
    Thanks alot
     
  16. ftn96

    ftn96 1/2 ton status

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    I never claimed to know it all, but now Im confussed.

    Since when was there ever a "10 BOLT that was rated as a 3/4 ton? I though all 10 bolts were 1/2 tons adn then there was 14 bolts as the 3/4 tons. Where did I go wrong here?

    Will work for beer, parts and tools.
    90 Jimmy 350TBI-700R4-241-33" BFGs-10 bolts w/4.10's
    <A target="_blank" HREF=http://www.nashvillek5.freeservers.com>http://www.nashvillek5.freeservers.com</A>
     
  17. Boss

    Boss 1/2 ton status Author

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    Dana use to produce the 1/2 ton thru 1 ton front axles for GM in the 70s. But then GM decides to make their own front axles starting in...I think around 77' or 78' or so (besides for 1 ton, hence the Dana 60). Then from then on, you have the Corp. 10 bolt front. Corp. 10bolt front for 1/2 ton has 6 lugs, and for 3/4 ton has 8 lugs. That's the difference there.
    Boss

    <A target="_blank" HREF=http://www.boss.coloradok5.com>http://www.boss.coloradok5.com</A>
     
  18. thatK30guy

    thatK30guy 1 ton status Premium Member

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    Yeah, GM started the 10B for BOTH 1/2 and 3/4 ton while still using the D44 also. I am not real clear on which was the standard and the other was the option.

    Executioner: Ok, I see your point and thanks for clearing that. Thanks to Stoop and Boss for helping too. I have no beef with anybody on this site. Just maybe next time, instead of using someones personal info against them, maybe like for what you said, use Chevy and GMC to compare differences. Or like Boss said, apples and oranges. Same thing, but little different. Oh well, life goes on! Later dude!
     
  19. CaptCrunch

    CaptCrunch 1/2 ton status

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    Hey boss...
    If that is the case did GM ever have any rear Dana 60's in the 73-87 spring width? Say maybe in 73 or 74 3/4 ton? thanks

    1987 Chevy K5 Blazer- 350 TBI
     
  20. congrats on the 10 bolt! i run the same axle with a truss and have had good luck so far. it is an easy swap like the others said. happy wheelin!

    78, 400/350/203, 3/4 ton, 2.5" lift, 35" BFGs
    <A target="_blank" HREF=http://bluebeast.coloradok5.com/>http://bluebeast.coloradok5.com/</A>
     

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